Rare Earths and the Refining Bottleneck: Why China Dominates and What the West Can Do

Rare earth elements (REEs) are indispensable components in modern technology, from electric vehicles and wind turbines to smartphones and advanced defence systems. Despite their name, these elements are not exceptionally rare in the Earth’s crust. The critical constraint lies further down the supply chain: refining. Turning mined ore into the pure, separated elements that industry needs is technically demanding, expensive, and can generate significant environmental harm. That refining stage is where the global market is concentrated and where strategic risk is greatest.

Why refining matters

The refining process for rare earths involves multiple stages of chemical processing, separation, and purification to produce individual elements such as neodymium, praseodymium, dysprosium and others. These steps require specialized facilities, skilled labor, and strict environmental controls to manage hazardous waste and acid runoff. Because of the sophistication and cost involved, many mining companies prefer to sell extracted ore or partially processed concentrates rather than run refineries themselves.

This division of labor — miners focused on extraction and others focused on refining — makes economic sense for private firms but creates a geopolitical vulnerability. Raw ore is only useful after it has been refined, and the global refining footprint determines who ultimately controls the supply of finished rare earth products. When refining capacity is concentrated in one country, that country gains leverage over global supply chains for critical technologies.

China’s dominant role

China currently dominates the refining stage of the rare earth market, accounting for over 90% of global refined output. Years of industrial policy, state support and investment allowed Chinese firms to build and scale refining capabilities, often accepting slim profit margins to secure market share. That dominance has been amplified by the ability to shoulder the environmental and social costs associated with large-scale chemical processing — costs that some Western jurisdictions have been unwilling to bear without significant subsidies or regulatory adaptation.

Because refining drives the availability of finished rare earth products, this concentration creates a strategic risk for countries that rely on those materials for clean-energy and defence technologies. Even when mining occurs elsewhere, dependence on a single refining hub means that supply disruptions, policy shifts or export controls can ripple through industries worldwide.

Western responses and remaining challenges

In recent years, governments in the United States, South Korea, France and other countries have started to intervene to rebuild domestic or allied refining capacity. Policies being deployed include direct subsidies, price guarantees, public-private partnerships and incentives for recycling and processing technologies. These measures aim to make refining financially viable again in regions with stricter environmental standards and higher labor costs.

Despite these efforts, major international agencies project continued concentration in China for years to come. The International Energy Agency has estimated that China could still control a large share of global refining capacity well into the 2030s and beyond. As market prices fluctuate, non-Chinese refiners can struggle to compete without sustained policy support, and private firms may still prefer not to shoulder the capital and compliance costs of large-scale chemical processing.

Policy options to reduce strategic vulnerability

Addressing the refining bottleneck requires a mix of short- and long-term policy choices. Possible approaches include:

• Targeted subsidies and price support to make domestic refining economically sustainable while cleaner technologies are developed.
• Public-private partnerships that share risk and catalyze investment in advanced separation and recycling facilities.
• Investment in research to reduce the environmental footprint and cost of refining processes, including more efficient separation techniques and closed-loop waste treatment.
• International alliances and coordinated procurement to diversify refining demand across friendly countries and firms.
• Strategic stockpiling of critical refined materials as a buffer against short-term supply disruptions.
• Expanded programs for recycling rare earths from end-of-life products to recover valuable elements and reduce dependence on primary refining.

Conclusion

Rare earth elements themselves are not the fundamental scarcity; the bottleneck is the ability to refine them into usable forms. Chinese dominance of the refining stage creates a strategic concentration that has only recently prompted stronger government intervention elsewhere. While subsidies and partnerships can help, achieving long-term supply independence will likely require a broader strategy: investment in cleaner refining technologies, international coordination, recycling programs and, if necessary, stockpiles to smooth short-term disruptions. Without such measures, reliance on a single dominant refining hub will remain a persistent vulnerability for critical technologies around the world.